Waste-containment garment having disposable elasticized insert

A waste-containment garment comprising a disposable, elasticized waste-containment insert secured inside an over-garment such as a conventional reuseable diaper, or a disposable diaper, or overpants, or the combination of a reuseable diaper covered with overpants. The insert comprises an absorbent core and a liquid impervious backsheet. Preferably, it also includes a liquid pervious, hydrophobic topsheet. The insert has a width less than one-half the midsection girths of intended users and, preferably, the absorbent core has front and back waist portions which have widths of from about fifteen to about thirty-five percent of the midsection girths of intended users or, nominally, about one-quarter of the midsection girth of an average size intended wearer. The insert is so elasticized along its longitudinal side edges that, when properly secured inside a suitable over-garment, and the over-garment is properly applied to a wearer, the elasticized side edges of the insert are sufficiently tensioned to form liquid seals or leg cuffs along upper thigh regions of the wearer: particularly, along the inner spans of the upper thigh regions of the wearer. The insert may include outwardly facing adhesive areas on its corners to enable its securement to inwardly facing surface regions of the over-garment; and the insert may further include captive peelable covers. The insert may, alternatively, be provided with reinforcing grommets on its corners to facilitate fastening it within a snap-fastener equipped overpants or the like; or such grommets may be provided with adhesive coatings and peelable covers to enable the insert to be secured with either its integral adhesive areas or with snap fasteners or the like attached to or integral with overpants.